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73—200型潜孔钻机是在南芬露天铁矿φ200型潜孔钻机的基础上,由南芬露天铁矿、东北工学院、长沙矿山研究院、江西矿山机械厂、太原矿山机器厂等联合设计,从72年底开始至73年6月完成设计,1974年6月至1975年8月在南芬铁矿先后对七台(太原矿山厂制造四台,江西矿山厂制造三台)进行了历时67个台月连续性生产试验,试验表明该机结构基本合理;性能良好;主要零、部件坚固耐
73-200 DTH drilling rig is based on the φ200 DTH drilling rig of Nanfen Open-pit Iron Mine, which is jointly developed by Nanfen Open-pit Iron Mine, Northeast Institute of Technology, Changsha Mining Research Institute, Jiangxi Mining Machinery Plant and Taiyuan Mining Machinery Factory Design, from the end of 72 to June 73 to complete the design, from June 1974 to August 1975 in Nanfen iron mine has Qitai (Taiyuan mine manufacturing four, Jiangxi mine manufacturing three) for the duration 67 months of continuous production test Taiwan, the test showed that the basic structure of the aircraft reasonable; good performance; the main zero, parts firm